1 Physical Properties
1.1 Tenacity
1.4 Solubility
Dilute acid
Not Available
1.7 Durability
Not Available
Not Available
1.10 Specific Gravity
2.93-2.961.98-2.50
1
7.18
1.19 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Conchoidal, Gemstones of the world (2001)
1.20 Cleavage
Distinct on {010}, imperfect {110} and {011}
Not Available
1.21 Mohs Hardness
1.22 Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)